The traditional power quality monitoring and management system is based on the supply side. The cost of system construction is high while the data is archived in the power system and invisible to the customers, which has certain closeness. It also lacks multi-dimensional data mining and analysis and cannot provide value-added services to customers. This paper introduces a power quality service system based on integrated energy service business, which integrates traditional power quality technology with integrated energy business, centers on service and customer experience, carries out service combined power information collection, and guarantees the feasibility from cost and technology. Combining edge computing, big data, cloud computing and other technologies, the system provides customers with abundant power quality service choices and high quality power quality service products with Infrastructure as a Service (IaaS), Software as a Service (SaaS) and Platform as a Service (PaaS). The scheme, conforming to the law of energy Internet development, can effectively guarantee the requirements of transparent information sharing, compatible terminal access, distributed storage computing and friendly interaction, which provides a reference for the construction of power quality service system for integrated energy business.